Arandom sample of 16 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years. we want to determine if the average age of all the students at the university is significantly more than 24. assume the distribution of the population of ages is normal. the test statistic is a. 1.96. b. 2.00. c. 05. d. 1.65.

Option 'b' is correct.

Step-by-step explanation:

Since we have given that

Average age = 25 years

Standard deviation = 2 years

Sample size = 16

So, Null hypothesis :

Alternate hypothesis:

Level of significance = 5% = 0.05

So, test statistic would be

Hence, Option 'b' is correct.

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

all group life insurance is term insurance. actually it is annual renewable term and it is rated on the average age and claims experience of the entire group, which is called "experience rating." remember, this type of insurance has a 31-day grace period and is convertible to whole life upon leaving employment. a contributory group plan requires that both the employer and the employees pay part of the premium. at least 75% of those eligible must participate, so the group is sure to get most of the healthy employees as well as those that are sick.

step-by-step explanation: